Convened
I think it could be either:
'convened' is the definition.
(sitting is a kind of convening)
This is the entire clue.
(Other definitions for sat that I've seen before include "Took (an exam)" , "twenty-four hours" , "Pulled up a 29 down" , "Perched" , "Posed (for an artist)" .)
'convened' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for met that I've seen before include "Came across - police in London" , "gathered together" , "Encountered or touched" , "Got together" , "London police (abbr) - New York Museum of Art (abbr)" .)